Chain



FIG. 1 is a perspective view of a chain showing the new design;

FIG. 2 is another perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a back elevation view thereof;

FIG. 5 is a left-side view thereof;

FIG. 6 is a right-side view thereof;

FIG. 7 is an enlarged top plan view thereof;

FIG. 8 is an enlarged bottom plan view thereof;

FIG. 9 is an enlarged perspective of the encircled portion in FIG. 1 thereof;

FIG. 10 is an enlarged perspective of the encircled portion in FIG. 1 thereof; and,

FIG. 11 is an enlarged perspective view of the encircled portion in FIG. 2 .

The evenly spaced broken lines in FIGS. 1, 2, 3, 4, 5, 6, 9, and 11 depict portions of a chain that form no part of the claimed design. The dash-dot broken lines in FIGS. 1, 2, 3, 4, 5, 6, and 9 depict symbolic breaks. The dash-dot broken break lines and the area between the break lines form no part of the claimed design. The dot-dot-dash broken lines in FIGS. 1, 2, 9, and 10 depict boundaries of the detail enlargements that form no part of the claimed design. 

CLAIM The ornamental design for a chain, as shown and described. 